Abstract : This final report documents a summary of all technical work accomplished and information - obtained in performance of the contract "Short-Term Propulsion and Power Development Analysis/Assessment and Information Dissemination" (Contract No. F33615-90-C-2086) in support of the Aero Propulsion and Power Directorate, - Wright Laboratory, Air Force Material Command, Wright Patterson AFB, OH. Work accomplished under this contract was documented by UES Inc. as Project 246. Individualtasks were identified as Project 246-001 through Project 246-047. The various tasks accomplished under this contract covered a wide variety of technical fields and areas of study. Examples of these areas include design and testing of heat transfer devices and combustors; design, fabrication and installation of an Ethylene Fuel System; design and engineering analysis of sonic and supersonic nozzles; - historical research on the History of the Gas Turbine Engine and the 75th Anniversary History of the Aero Propulsion and Power Directorate; and improve the design and efficiency of airbreathing propulsion systems.